Aluminum Prop Adapter Set for Multirotor 4114 Brushless Motors. CNC Machined. Included: 2 CW and 2 CCW Prop Adapters with hex nuts, washers, and screws. CNC Machined from Billet Aluminum 6mm shaft for carbon fiber or APC style props with 6mm hub or ring kit Very strong and light weight Each adapter package labeled LH or RH